MGASA-2021-0409
- Source
- https://advisories.mageia.org/MGASA-2021-0409.html
- Import Source
- https://advisories.mageia.org/MGASA-2021-0409.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/MGASA-2021-0409
- Related
- Published
- 2021-08-23T05:28:48Z
- Modified
- 2022-02-17T18:21:47Z
- Summary
- Updated kernel packages fix security vulnerabilities
- Details
-
This kernel update is based on upstream 5.10.60 and fixes at least the following security issues:
Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic in ath9k (CVE-2020-3702).
A missing validation of the "int_ctl" VMCB field allows a malicious L1 guest to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. The L2 guest is able to write to a limited but still relatively large subset of the host physical memory, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape (CVE-2021-3653).
A missing validation of the the "virt_ext" VMCB field and allows a malicious L1 guest to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. Under these circumstances, the L2 guest is able to run VMLOAD/VMSAVE unintercepted, and thus read/write portions of the host physical memory, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape (CVE-2021-3656).
In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket (CVE-2021-38166).
drivers/net/ethernet/xilinx/xilinx_emaclite.c in the Linux kernel before 5.13.3 makes it easier for attackers to defeat an ASLR protection mechanism because it prints a kernel pointer (CVE-2021-38205).
Other fixes in this update: - cficmdset0002: fix crash when erasing/writing AMD cards
For other upstream fixes, see the referenced changelogs.
- References
-
- https://advisories.mageia.org/MGASA-2021-0409.html
- https://bugs.mageia.org/show_bug.cgi?id=29384
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.57
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.58
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.59
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.60
- Credits
-
-
- Mageia - COORDINATOR
-
Affected packages
Mageia:8 / kernel
Package
- Name
- kernel
- Purl
- pkg:rpm/mageia/kernel?distro=mageia-8
Mageia:8 / kmod-virtualbox
Package
- Name
- kmod-virtualbox
- Purl
- pkg:rpm/mageia/kmod-virtualbox?distro=mageia-8
Mageia:8 / kmod-xtables-addons
Package
- Name
- kmod-xtables-addons
- Purl
- pkg:rpm/mageia/kmod-xtables-addons?distro=mageia-8